Most of the people in the EPA are career employees, who are there because they love government involvement in the environment.
The bias and bureaucracy of that agency is always going to be leftist.
At most, this was a failure at the top to stop the issuance of a report that would be so misconstrued by the media. But we shouldn't be surprised at all that the agency attempts to issue leftist positions.
With all the political clout the Bush has and his 70%+ ratings and he should be able to convert everyone to conservatism. Gephart , Hillary, Al Gore and even Al Sharpton should be Bush bots by now.